40043201423 has 16 divisors (see below), whose sum is σ = 43119767040. Its totient is φ = 37066248000.

The previous prime is 40043201399. The next prime is 40043201431. The reversal of 40043201423 is 32410234004.

It is a cyclic number.

It is not a de Polignac number, because 40043201423 - 2¹⁶ = 40043135887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043201453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499388 + ... + 573998.

It is an arithmetic number, because the mean of its divisors is an integer number (2694985440).

Almost surely, 2^40043201423 is an apocalyptic number.

40043201423 is a deficient number, since it is larger than the sum of its proper divisors (3076565617).

40043201423 is a wasteful number, since it uses less digits than its factorization.

40043201423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75278.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40043201423 its reverse (32410234004), we get a palindrome (72453435427).

The spelling of 40043201423 in words is "forty billion, forty-three million, two hundred one thousand, four hundred twenty-three".